Thirteen of the 16 slots in the next stage of the CL are already allocated, but Chelsea and Celtic can still get on the gravy train – here's how

Counting on his fingers: Rafa Benitez makes late bid to introduce five-points-for-a-win rule

That it should come to this for the reigning European champions Chelsea! Tomorrow's final remaining group matches in the Champions League could still see the Blues stagger into the knockouts... but they need help.

As qualification permutations go this season's scenarios are straightforward, and the Press Association's abacus barely rattled to bring us this report on the CHAMPIONS LEAGUE MATCHDAY SIX PERMUTATIONS:

The Champions League group phase concludes tomorrow night with 13 of the slots for the last-16 knockout round already secured.

Chelsea are third in Group E and their head-to-head record is inferior to both teams above them. If they fail to win, the Blues will drop into the Europa League and become the Champions League holders to fail to reach the subsequent last 16.

GROUP G

Celtic need to secure a better result than Benfica to overtake them and move into second place.

The Portuguese side have head-to-head superiority over Celtic and will definitely progress with a win over group winners Barcelona at the Nou Camp, or if they match the result of Celtic, who host bottom side Spartak Moscow.

GROUP H

Galatasaray or Cluj can still progress in second place, although the Turkish champions have the advantage going into the final game.

A win over Braga in Portugal would see them through, while Romanian side Cluj must ensure they earn a better result than Galatasaray to qualify for the last 16. Cluj take on group winners Manchester United at Old Trafford.